Also called Model 195, this pistol underwent nearly constant modifications from its inception in 1928 until production ceased in 1941. Its development was greatly influenced by the United States Revolver Association (USRA), which established certain rules for target pistol shooting. Lack of any H&R-published model chronology for estimated 3,500 guns manufactured, makes model determination by examination complicated; further difficulty is that H&R supplied newly designed parts to owners of older variations, who would then retrofit their pistols with newer triggers, hammers, sights and trigger guards. Extracted from available literature, the parts represent approximately: 14 different stocks and virtually endless custom variations by Walter F. Roper; 5 different trigger guards; 3 different triggers; 2 different hammers; 2 different extractors; 3 barrel lengths (7", 8", 10"); and 3 barrel rib styles. From this array of potential characteristics, at least four distinct variations can be identified.